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Terminal treatment method and terminal treatment apparatus for coaxial cable

Active Publication Date: 2013-10-31
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a method for treating the end of a coaxial cable to easily separate the wires. This method reduces slipping of the outer conductor, making it easier to loosen the exposed portion of the outer conductor and separate it from the outer surface of the core member. The patent also provides a terminal treatment method and apparatus that allows for easy branching of the outer and inner conductors.

Problems solved by technology

In the coaxial cable used as this application, because the outer conductor does not have a small diameter as in the shielding use, when the outer conductor is untwisted, a sheath and the outer conductor of the coaxial cable chucked are slipped relative to each other, thereby causing insufficient untwisting.
Further, in a case of an outer conductor having a large wire diameter, it is difficult to separate the outer conductor by air of the air knife.
In addition, when the separated outer conductor is bundled, if a bundle of wires of the outer conductor is sandwiched and then stretched and twisted, the outer conductor can be damaged or broken and thus deterioration of electrical and mechanical properties is worried.

Method used

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  • Terminal treatment method and terminal treatment apparatus for coaxial cable
  • Terminal treatment method and terminal treatment apparatus for coaxial cable
  • Terminal treatment method and terminal treatment apparatus for coaxial cable

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first embodiment

[0068]Firstly, a terminal treatment method and a terminal treatment apparatus according to a first embodiment will be described.

[0069]FIGS. 1A and 1B are views showing a coaxial cable of which a terminal is to be treated by a terminal treatment method and a terminal treatment apparatus of a coaxial cable according to the present invention, in which FIG. 1A is a perspective view of an end portion thereof and FIG. 1B is a sectional view of the end portion, and FIG. 2 is a perspective view of the end portion of the coaxial cable of which the terminal has been treated by the terminal treatment method and the terminal treatment apparatus of a coaxial cable according to the present invention.

[0070]As shown in FIGS. 1A and 1B, a coaxial cable 10, of which a terminal is to be treated by the terminal treatment method and the terminal treatment apparatus according to the present invention, has a structure in which a core member 13 having an inner conductor 11 covered with an insulator 12 is p...

second embodiment

[0116]Next, a terminal treatment method and a terminal treatment apparatus according to a second embodiment will be described.

[0117]In the outer conductor releasing step as described above, when the outer conductor 14 is pressed and fixed from the outer circumferential side thereof by the pressing recess 33 of each of the chuck bodies 32 of the chuck jig 31, such a load is exerted to the core member 13 having the inner conductor 11. Further, in a state in which the outer conductor 14 is fixed by the chuck jig 31, when the chuck bodies 32 are rotated to untwist the outer conductor 14, a torsion load is also exerted to the core member 13 having the inner conductor 11. If such a pressing load or a torsion load is exerted to the core member 13, there is a risk of deforming the inner conductor 11 of the core member 13.

[0118]For this reason, according to the terminal treatment method and the terminal treatment apparatus of the second embodiment, pre-treatments are performed after the oute...

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Abstract

A terminal treatment method is for a coaxial cable which includes a core member in which an inner conductor is covered with an insulator, an outer conductor provided around the core member and formed of a plurality of wires, and a sheath covering an outer circumference of the outer conductor. The method includes exposing the outer conductor by removing the sheath on an end portion of the coaxial cable, separating the wires of the outer conductor from an outer circumferential surface of the core member by gripping and moving an end portion of the outer conductor to loosen the exposed portion of the outer conductor, extruding the core member having the inner conductor from gaps formed in the wires of the outer conductor to extract the core member from the outer conductor, and intertwining the outer conductor by gripping and twisting the end portion of the outer conductor.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is based on Japanese Patent Applications No. 2012-104016 filed on Apr. 27, 2012, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]The present invention relates to a terminal treatment method and a terminal treatment apparatus of a coaxial cable having an inner conductor and an outer conductor.[0004]2. Background Art[0005]As electric cables having a shielding function, coaxial cables covering an outer peripheral of an inner conductor have been used from the past (for example, see JP-A-2004-171952 and JP-A-2007-66825).[0006]Also, a technique for terminal-treating such coaxial cables, in which an inner conductor in a terminal portion thereof is separated from an outer conductor, has been known (for example, see JP-A-H1-081608). According to this terminal treatment, an outer conductor 1 formed of fine wires is untwisted as shown in FIG. 23 and then the outer co...

Claims

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Application Information

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IPC IPC(8): H01R43/20
CPCH01R43/20H01R43/28H02G1/1292H02G1/005Y10T29/49218Y10T29/53235H02G1/1297
Inventor FURUHATA, KENTASHIRAKI, YASUTSUGU
Owner YAZAKI CORP
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